Energy Conservation Program for Consumer Products: Test Procedures for Residential Furnaces and Boilers (Standby Mode and Off Mode)

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In an earlier final rule, the U.S. Department of Energy (DOE) prescribed amendments to its test procedures for residential furnaces and boilers to include provisions for measuring the standby mode and off mode energy consumption of those products, as required by the Energy Independence and Security Act of 2007. These test procedure amendments were primarily based on provisions incorporated by reference from the International Electrotechnical Commission (IEC) Standard 62301 (First Edition), "Household electrical appliances--Measurement of standby power." In this current final rule, DOE further amends its test procedure to incorporate by reference the latest edition of the IEC Standard, specifically IEC Standard 62301 (Second Edition). The new version of this IEC standard includes a number of methodological changes designed to increase accuracy while reducing testing burden. This final rule also clarifies the rounding guidance and sampling provisions for the new measurement of standby mode and off mode wattage.